I noticed that there are only 2 sappers (excluding the ap-sap) and thought that there should be another one. I was thinking of maybe some sort of an explosive sapper, that could destroy surrounding enemy buildings and maybe even other enemies once it finishes sapping one building. The design could be sort of like a stick of dynamite with a clock and could even have a ticking noise. I was thinking the stats could be something like:

+Creates a small explosion that can injure enemies and surrounding buildings-25% Sap rate

Weapons are usually good or bad depending on what scenario you're in. This could be useful when sapping tons of buildings in areas where they're near each other (*Cough*Second round of Dustbowl*Cough*) but can be bad when sapping a single building with nothing around it. What are your thoughts? Is it balanced?